protected override void Encode_Header(BinaryReaderWriter bw)
{
Unknown_0x0C = 0x01; // Bedeutung unklar
base.Encode_Header(bw);
bw.Write(Codepage);
PointDatablock.Write(bw);
PolylineDatablock.Write(bw);
PolygoneDatablock.Write(bw);
bw.Write(FamilyID);
bw.Write(ProductID);
PointTableBlock.Write(bw);
PolylineTableBlock.Write(bw);
PolygoneTableBlock.Write(bw);
PolygoneDraworderTableBlock.Write(bw);
if (Headerlength > 0x5b)
{
NT_PointTableBlock.Write(bw);
bw.Write(nt_unknown_0x65);
NT_PointDatablock.Write(bw);
if (Headerlength > 0x6E)
{
bw.Write(nt_unknown_0x6E);
NT_PointLabelblock.Write(bw);
bw.Write(nt_unknown_0x7A);
bw.Write(nt_unknown_0x7E);
NT_LabelblockTable2.Write(bw);
bw.Write(nt_unknown_0x8A);
bw.Write(nt_unknown_0x8E);
NT_LabelblockTable2.Write(bw);
bw.Write(nt_unknown_0x9A);
bw.Write(nt_unknown_0x9C);
if (Headerlength > 0xA4)
{
bw.Write(nt_unknown_0xA4);
if (Headerlength > 0xAE)
{
nt_unknown_0xAE = new byte[Headerlength - 0xAE];
bw.Write(nt_unknown_0xAE);
}
}
}
}
}
public override void ReadHeader(BinaryReaderWriter br)
{
base.ReadCommonHeader(br, Type);
if (Unknown_0x0C != 0x01) // Bedeutung unklar
{
throw new Exception("Das ist keine Garmin-TYP-Datei.");
}
Headertyp htyp = Headertyp.Unknown;
Codepage = br.Read2AsUShort();
// Infos zu den Datenblöcken für POI, Polyline und Polygon einlesen (Offset, Länge)
// (eigentlich uninteressant, da auf die Daten über die entsprechenden Tabellen zugegriffen wird)
PointDatablock.Read(br);
PolylineDatablock.Read(br);
PolygoneDatablock.Read(br);
FamilyID = br.Read2AsUShort();
ProductID = br.Read2AsUShort();
// Infos zu den Tabellen für POI, Polyline und Polygon einlesen (Offset, Länge, Länge der Tabelleneinträge)
PointTableBlock = new TypDataBlockWithRecordsize(br);
PolylineTableBlock = new TypDataBlockWithRecordsize(br);
PolygoneTableBlock = new TypDataBlockWithRecordsize(br);
PolygoneDraworderTableBlock = new TypDataBlockWithRecordsize(br);
htyp = Headertyp.Standard;
// ev. kommt noch NT-Zeugs
if (Headerlength > 0x5b) // Extra icons
{
htyp = Headertyp.Type_6E;
// spez. Daten für NT1-Punkte
NT_PointTableBlock = new TypDataBlockWithRecordsize(br);
nt_unknown_0x65 = br.ReadByte(); // sollte wohl immer 0x1F sein (?), auch 0x0D
NT_PointDatablock.Read(br);
if (Headerlength > 0x6e) // Extra POI Labels
{
htyp = Headertyp.Type_9C;
nt_unknown_0x6E = br.Read4UInt(); // 0
NT_PointLabelblock.Read(br); // Block-Offset und -Länge
nt_unknown_0x7A = br.Read4UInt(); // 6 Datensatzlänge?
nt_unknown_0x7E = br.Read4UInt(); // 0x1B
NT_LabelblockTable1.Read(br);
nt_unknown_0x8A = br.Read4UInt(); // 6
nt_unknown_0x8E = br.Read4UInt(); // 0x1B
NT_LabelblockTable2.Read(br);
nt_unknown_0x9A = br.Read2AsUShort(); // 0x12
if (Headerlength > 0x9C) // Indexing a selection of POIs
{
htyp = Headertyp.Type_A4;
br.ReadBytes(nt_unknown_0x9C); // scheint nochmal der gleiche Datenblock wie LabelblockTable2 zu sein
if (Headerlength > 0xA4) // Active Routing
{
htyp = Headertyp.Type_AE;
br.ReadBytes(nt_unknown_0xA4);
if (Headerlength > 0xAE)
{
htyp = Headertyp.Unknown;
nt_unknown_0xA4 = br.ReadBytes(Headerlength - (int)br.Position); // Rest einlesen
}
}
}
}
}
_HeaderTyp = htyp;
}